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Glow-worm Electrode Screw 801639

Glow-worm

Glow-worm Electrode Screw 801639

Electrode screw, part 801639, for Glow-worm GW, Ultracom and Ultrapower gas boilers.

At a glance

  • Also known as 1333069
Manufacturer part no.
801639
GC number
E85-013
Showing prices

£9.53

£7.94 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The electrode screw is a Glow-worm fixing component, part number 801639, used to secure the electrode assembly within the combustion chamber on GW, Ultracom and Ultrapower gas boiler ranges. It holds the electrode in its correct position so the ignition and flame sensing functions remain stable. It is supplied as a single screw.

Signs this part needs replacing

  • Corrosion or rust on the screw head or thread
  • Thread damage or a screw that will not tighten to hold the electrode securely
  • Electrode sitting loose or moving out of position
  • Ignition faults or flame sensing errors traced to a poorly secured electrode
  • Screw seized or rounded off during electrode removal

Before you order

  • Confirm your boiler model against the fitment list above
  • Check the existing electrode and its fixing point for thread damage before refitting
  • Verify the part number 801639 matches the component being removed
  • Isolate the appliance and follow the manufacturer's instructions when working on the combustion chamber

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.